Editing Magical objects in Harry Potter (section)

=== Blood Quill ===
The Blood Quill is a torture quill used by Umbridge throughout the ''Order of the Phoenix'' to punish students whom she has given detention. It is described as having an unusually sharp black nib. As the user writes, the quill magically and very painfully cuts into the back of the user's hand and uses his or her blood for ink. In the fifth book, Harry has detention with Umbridge on several occasions; he is required to write lines (''I must not tell lies'') and is not released from this until Umbridge believes "the message has sunk in". When carried out repeatedly over an extended period, this leads to permanent scarring, as Harry shows Scrimgeour in the last two books. The scars tingle whenever Harry hears Umbridge's name, but it is not clear whether this is psychological or akin to Harry's forehead scar hurting whenever Voldemort is active. Another victim of this form of detention is Lee Jordan; in the film adaptation of the book, members of Dumbledore's Army are forced to use these quills as well. Blood quills are considered illegal to own.